Stove



Jam. 27. 1925.

M. BACCICH STOVE Filed Dec. 1923 Patented dan. 27, i925.

UNITED STTS MARCO BACCCH, OF ALEXl-illIDRA, EGYPT.

STOVE.

.Application filed December 3, i923.

To all whom t may concern:

Be it known that ll, MARCO Baooiorr, subject of ltaly, residing at Alexandria, Egypt, 162, rue Ebu-El-Toulloum a Alexandria,

Egypt, have invented new and useful lmprovements in a Stove, of which the following is a specification.

This invention has reference to safety stoves or the like.

Known petrol stoves operate by means of air compressed in the reservoir so as to place the combustible liquid, passing to the said reservoir, under pressure, thus causing the petrol vapour to issue at a velocity suilicient for its methodical mixing with the atmospheric air in order to ensure its complete combustion.

One disadvantage of stoves of the kind mentioned is that the maximum pressure of the air within the reservoir is not regulated and that pumping can be carried on until the pressure exceeds the limit of resistance of the walls of the stove, which latter may explode. Moreover, when the compressed air reservoir is empty it cannot be re-filled with liquid as long as the stove is burning, thus necessitating the use of at least two stoves where it is impossible to discontinue the heating.

Objects of the present invention are to avoid the use of compressed air, to limit the pressure on the liquid to a given controllable degree and to adapt the stove for refilling during its working.

Under the present invention, therefore, l provide a safety stove or the like without air compression, which is characterized by one or more spring pressed pistons which keep the combustible liquid constantly under pressure.

Preferably, the safety stove or the like comprises a spring, or springs, acting on a piston, or pistons, slidably arranged within a cylinder, or cylinders, so as to keep the combustible liquid constantly under pressure, safety holes being arranged in the cylinder, or each cylinder for the purpose of controlling the pressure to which the liquid is subjected and for providing an outlet for any excess of the said liquid into the reservoir of the stove or the like.

rllhe annexed drawing represents, by way of example, one constructional form of the present invention applied to a stove.

lll

serial no. eraan.

On the drawing:

Fig. l is a longitudinal section of the stove,

Fig. 2 is a sectional plan thereof,

liig. 3 is a section of the petrol pump on, a plane perpendicular to Fig. 2.

Referring to the drawing:

A pump l5 draws petrol from a reservoir A through an inlet valve C and forces it into cylinders ll tln'ough a retaining valve l) and a tube l?. Leather pistons Gr, slidably arranged in the cylinders E, enclose hern'ietically sealed compartments between the bottoms of the cylinders, by reason of the pressure of the liquid which forces them outwards against the cylinder walls. Spiral springs l, arranged within the said cylinders, are compressed under the pressure of the liquid on the pistons G which latter are guided by guides lll during their travel in the cylinders. After the pistons have arrived at the limits of their compression strokes, that is to say almost to the points of full compression of the springs l, the said pistons uncover safety holes J through which the petrol flows out and passes back into the reservoir A, from whence it may be drawn afresh by the pump when required.

When the excess of petrol has passed out through the holes J, the pistons move to close the said holes under the pressure of the springs l and the liquid remains stored within. the cylinders E, from whence it asses under the oressure of the said s )rings towards the vapourizer C and through the tube K and valve L, which latter can be regulated according to the intensity of the flame required.

ln order to relieve the liquid from pressure or to extinguish the flame, a valve -M, F ig. El, is opened whereupon the liquid compressed within the reservoir escapes.

inspection doors P are used in the event of any damage to the interior of the apparatus, an orifice being provided for use in filling the reservoir with petrol.

The springs l may be replaced by others of a different tension and the disposition of the cylinders, in series as represented in the drawing, may be modified without in convenience. The said cylinders may be placed either vertically or horizontally in series, or vertically or horizontally in groups.

The, number and length of the cylinders may be varied, as Well as their diameter, springsy adapted to give the desired pressure beingfemiiloyed e` invention is applicable to stoves of any kind and also to lamps for lighting and soldering lamps, which latter may be placed in any position Without danger. Feeding of the combustible .liquid can be carried outy during the Working of the stove Without vany danger.

Having now particularly I described and ascertainednthe nature of my said invention and in -what manner the saine is to be performed. Iv declarethat what I claimis:

AE safetyfstove'including a fuel tank, a series of cylinders arranged therein, isbons operating in the cylinders, substantial y constant pressuremeans arranged imeachcylinder below the piston therein, a puin operating Within the tank exterior-1y of t e c 1inders and having vcommunication with a l of said cylinders, said cylinders being formed with outlets leading directly to the tank to permit the discharge of the fuel from above the pistons Whensaid pistons have been moved to a position to uncover said outlets, said cylinders ln1`\fi1i,g free communication one Withthe other.

Intestiinony whereof l aixmy si nature. 

